Abstract
Recent marine sediments from Makirina bay are according to their organoleptic properties, treated as peloid or healing mud, already frequently used by local people and tourists as pomades. The application of peloids in balneotherapy is mainly intended for therapeutic treatment generally related to muscle-bone skin pathologies and purposes of Wellness and relaxation. Recent studies point out that one of the main factors determining the final characteristics of peloids are grain size distribution, mineralogy, cation exchange capacity (CEC), elemental and microbiological composition of initial »geological material«. As reported by previous studies Makirina Bay peloid is represented mostly by sandy silt with relatively high CEC value (63.82 meq/100g). Peloid mineral composition is dominated by dolomite and quartz, followed by illite/muscovite, aragonite, halite, calcite, and pyrite. The average concentrations of potentially toxic elements (PTE) in Makirina bay peloid determined in this research are: As (17.6 mg/kg), Cr (92.09 mg/kg), Cu (44.5 mg/ kg), Mo (31.8 mg/kg), Pb (28.9 mg/kg) and Zn (69.2 mg/kg) and are comparable to previous results. PTE contents in benthic algae Codium bursa (C. bursa) are: As (8.8 mg/kg), Cr (15.7 mg/kg), Cu (5.6 mg/kg), Mo (0.7 mg/kg), Pb (3.6 mg/kg) and Zn (16.3 mg/kg). Calculated Transfer factors (TF) from surficial peloid (0-5 cm) to benthic algae C. bursa are
Highlights
Zaliv Makirina predstavlja plitvomorsko sedimentacijsko okolje, znotraj katerega se usedajo recentni sedimenti, bogati z organsko snovjo (Šparica et al, 1989)
Recent studies point out that one of the main factors determining the final characteristics of peloids are grain size distribution, mineralogy, cation exchange capacity (CEC), elemental and microbiological composition of initial »geological material«
The average concentrations of potentially toxic elements (PTE) in Makirina bay peloid determined in this research are: As (17.6 mg/kg), Cr (92.09 mg/kg), Cu (44.5 mg/ kg), Mo (31.8 mg/kg), Pb (28.9 mg/kg) and Zn (69.2 mg/kg) and are comparable to previous results
Summary
Vzor~enje peloida je bilo izvedeno v poletnih mesecih leta 2010 na osmih razli~nih lokacijah v centralnem delu zaliva (sl. 1), kjer je peloid najbolj reprezentativen. Vzor~enje peloida je bilo izvedeno v poletnih mesecih leta 2010 na osmih razli~nih lokacijah v centralnem delu zaliva Vzorci morske alge C. burse so bili pobrani v centralnem delu zaliva, na isti lokaciji kot je bil vzor~en peloid Lokacija zaliva Makirina z ozna~enimi mesti vzor~enja, (○) peloidni jedrniki in bento{ka alga C. bursa, (∆) vzorci peloida za mikrobiolo{ke analize (DOF 1:5000, DGU Hrva{ka). Meritve vzorcev so bile podvojene, primerjava med certificiranimi in izmerjenimi vrednostmi je podana v tabeli 1. 1) in sicer na eni v centralnem delu zaliva ter na dveh na obali, kjer je peloid dejansko že v uporabi. Mikrobiolo{ke analize peloida so bile opravljene v akreditiranem Nacionalnem laboratoriju za zdravje, okolje in hrano, Oddelku za mikrobiolo{ke analize živil, vod in drugih vzorcev okolja, Enota Ljubljana, s kvalitativno mikrobiolo{ko preiskavo in uporabo internih standardov, kot sta ŽIVILA-LJ-08 in ŽIVILA-LJ-14
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